diff --git a/codespell_lib/data/dictionary.txt b/codespell_lib/data/dictionary.txt
index 813e203865..a1db812e12 100644
--- a/codespell_lib/data/dictionary.txt
+++ b/codespell_lib/data/dictionary.txt
@@ -59386,6 +59386,8 @@ theis->this, thesis,
 theiv->thief, they've,
 theive->thief
 theives->thieves
+them-self->themself
+them-selves->themselves
 themeing->theming
 themperature->temperature
 themperatures->temperatures